package fun.bigtable.kraken.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.scheduling.annotation.AsyncConfigurer;
import org.springframework.scheduling.annotation.EnableAsync;
import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;

import java.util.concurrent.Executor;
import java.util.concurrent.ThreadPoolExecutor;

/**
 * 异步配置
 */
@Configuration
@EnableAsync
public class AsyncConfig implements AsyncConfigurer {

    @Bean(name = "commonThreadPool")
    public ThreadPoolTaskExecutor executor() {
        ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
        // 设置核心线程数
        executor.setCorePoolSize(50);
        // 设置最大线程数
        executor.setMaxPoolSize(50);
        // 设置队列容量
        executor.setQueueCapacity(2000);
        // 设置线程活跃时间（秒）
        executor.setKeepAliveSeconds(30);
        // 设置默认线程名称
        executor.setThreadNamePrefix("commonThreadPool");
        // 设置拒绝策略--
        executor.setRejectedExecutionHandler(new ThreadPoolExecutor.CallerRunsPolicy());
        // 等待所有任务结束后再关闭线程池
        executor.setWaitForTasksToCompleteOnShutdown(true);
        return executor;
    }

    @Override
    public Executor getAsyncExecutor(){
       return executor();
    }

}
